Crosslinkable naphthal-diimide-based all-polymer solar cell receptor material and preparation method and application thereof

A solar cell and naphthalene diimide technology, which is applied in the fields of electric solid-state devices, semiconductor/solid-state device manufacturing, circuits, etc., can solve the problems of hindering charge separation and transmission, efficiency attenuation, and the service life gap of all-polymer solar cells. , achieve high photoelectric conversion efficiency, improve thermal stability, and improve thermal stability

Active Publication Date: 2018-11-02
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, there is still a certain gap between the service life of all-polymer solar cells and inorganic photovoltaic cells, and it is necessary to further improve the thermal stability of all-polymer solar devices in order to realize the application
Although the photothermal stability of all-polymer cells has been greatly improved compared with fullerene and small molecule acceptor cells, the efficiency of the reported devices still decays in a short period of time at high temperatures, the main reason Because the polymer donor / acceptor active layer is obtained by physical methods, once the two macromolecular substances are mixed together, their entropy base value will be significantly reduced, and the disorder of the polymer chain will increase, resulting in the inability to form an ideal between the donor and acceptor. The phase separation size (exciton diffusion length 10nm) hinders the separation and transport of charges

Method used

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  • Crosslinkable naphthal-diimide-based all-polymer solar cell receptor material and preparation method and application thereof
  • Crosslinkable naphthal-diimide-based all-polymer solar cell receptor material and preparation method and application thereof
  • Crosslinkable naphthal-diimide-based all-polymer solar cell receptor material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0037] Synthesis of Polymer C-PNDI-T-0.05

[0038] The chemical reaction flow chart of the present embodiment is as figure 1 Shown, concrete reaction steps and reaction conditions are as follows:

[0039] Under nitrogen protection, 0.01045 mmol monomer A (4,9-dibromo-2,7-bis(2-hexyldecyl)-benzo[lmn][3,8]o-phenanthroline-1, 3,6,8-tetranitro), 0.0055mmol monomer B (4,9-dibromo-2,7-di(undecenyl)-benzo[lmn][3,8]o-diazepine After mixing phenanthrene-1,3,6,8-tetranitro and 0.11mmol monomer C (2,5-bis(trimethylstannyl)thiophene), add 5mol% catalyst tris(dimethoxyphene) in sequence Benzylacetone) Dipalladium (Pd 2 (dba) 3 ) and 10mol% ligand tris(o-methylphenyl)phosphine (P(o-tyl) 3) were mixed and dissolved in 3 mL of a mixed solvent of toluene and N,N dimethylformamide (5:1). Then allow the reaction solution to stir and reflux at 110°C for 48 hours, then add 0.11 mmol of phenylboronic acid to cap it, and continue the reaction for 6 hours; stop responding. After the reaction ...

Embodiment 2

[0052] Synthesis of Polymer C-PNDI-T-0.03

[0053] The chemical reaction flow chart of the present embodiment is as figure 1 Shown, concrete reaction steps and reaction conditions are as follows:

[0054] Under nitrogen protection, 0.1012 mmol of monomer A (4,9-dibromo-2,7-bis(2-hexyldecyl)-benzo[lmn][3,8]o-phenanthroline-1, 3,6,8-tetranitro), 0.0088mmol monomer B (4,9-dibromo-2,7-di(undecenyl)-benzo[lmn][3,8]o-diazepine After mixing phenanthrene-1,3,6,8-tetranitro and 0.11 mmol monomer C (2,5-bis(trimethylstannyl)thiophene), add 5 mol% catalyst tris(dibenzyl Dipalladium (Pd 2 (dba) 3 ) and 10mol% ligand tris(o-methylphenyl)phosphine (P(o-tyl) 3 ) were mixed and dissolved in 3mL of toluene and N,N dimethylformamide (5:1) mixed solvent; then the reaction solution was stirred and refluxed at 110°C for 48h, then capped with 0.11mmol phenylboronic acid, and the reaction was continued After 7 hours, add 0.3~0.5mL of bromobenzene to block, and then react at 110°C for 4 hours, ...

Embodiment 3

[0061] Synthesis of Polymer C-PNDI-Se-0.05

[0062] The chemical reaction flow chart of the present embodiment is as image 3 Shown, concrete reaction steps and reaction conditions are as follows:

[0063] Under nitrogen protection, 0.1045 mmol of monomer A (4,9-dibromo-2,7-bis(2-hexyldecyl)-benzo[lmn][3,8]phenanthroline-1, 3,6,8-tetranitro), 0.0055mmol monomer B (4,9-dibromo-2,7-di(undecenyl)-benzo[lmn][3,8]o-diazepine After mixing phenanthrene-1,3,6,8-tetranitro and 0.11 mmol monomer C (2,5-bis(trimethylstannyl)selenophene), 5 mol% catalyst tris(di Benzylideneacetone) Dipalladium (Pd 2 (dba) 3 ) and 10mol% ligand tris (o-methylphenyl) phosphine (P (o-tyl) 3) are mixed and dissolved in 3 mL of toluene and N,N dimethylformamide (5:1) mixed solvent; then Stir and reflux the reaction solution at 110°C for 36 hours, then add 0.11 mmol of phenylboronic acid to block, and continue the reaction for 4 hours; then add 0.3 to 0.5 mL of bromobenzene to block, then react at 110°C fo...

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Abstract

The invention discloses a crosslinkable naphthal-diimide-based all-polymer solar cell receptor material and a preparation method and application thereof. A ternary random polymer with different olefinic bond contents is prepared by adjusting the composition of monomers containing olefinic bonds and is subjected to high-temperature thermal treatment; also disclosed is how to acquire a crosslinked-structure active layer material at the premise of maintaining high photoelectric conversion efficiency in order to except to obtain an all-polymer solar device having high photoelectric conversion efficiency and excellent thermal stability; application in the field of organic solar cells is achieved. In addition, the preparation method is simple; the material acquired has better resistance to hightemperature and better thermal stability when applied to photovoltaic material active layers as compared to common polymer donor / receptor photovoltaic material active layers; therefore, the material herein can be applied to the field of all-polymer solar cells to provide significantly improved stability for devices.

Description

technical field [0001] The invention belongs to the field of photoelectric materials, in particular to an organic solar photoelectric material, and more specifically to a crosslinkable naphthalene diimide-based all-polymer solar cell acceptor material, a preparation method and an application thereof. Background technique [0002] All-polymer solar cells (All-PSCs) made of p-type conjugated polymer donor materials and n-type polymer acceptor materials blended as photosensitive active layers, due to good film-forming properties, good stability, etc. advantages have been extensively studied. At present, the photoelectric conversion efficiency of All-PSCs has surpassed that of fullerene-based batteries in just a few years, indicating its great potential. However, there is still a certain gap between the service life of all-polymer solar cells and inorganic photovoltaic cells, and to realize the application, it is necessary to further improve the thermal stability of all-polymer...

Claims

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Application Information

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IPC IPC(8): C08G61/12H01L51/42H01L51/46
CPCC08G61/126C08G2261/91C08G2261/3223C08G2261/1412C08G2261/1414C08G2261/122H10K85/151H10K30/00Y02E10/549
Inventor 王文凌启淡崔建玉
Owner FUJIAN NORMAL UNIV
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